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  1. #11

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    Wow! This really is a great forum! Thanks to everyone for your input and responding so quickly!

  2. #12
    Willie Jan's Avatar
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    across 120:

    exposed at 50
    developed 14 minutes in rodinal 1+100 (594cc water, 6cc rodinal)
    at 20 degrees c. Flip the tank each 30sec. gently.

    Willie Jan
    www.foto-art.nl

  3. #13
    thefizz's Avatar
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    I soup my 120 Across in Rodinal 1:50 and Tmax 1:9.

  4. #14
    Maine-iac's Avatar
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    Quote Originally Posted by gphoto120
    What developer would you experience folks suggest for Acros 100 120 format.

    I'm just getting started in the darkroom and thinking about using Acros and also testing FP4 soon.

    Thanks!
    GP

    If you'd enjoy mixing your own developer from scratch, I use a simple, 3-ingredient formula for ACROS that gives me beautiful results and is simple to mix and dirt cheap.

    Two of the three ingredients, you can buy at your supermarket or vitamin department. The Phenidone is the only ingredient you'll need to buy from Photographer's Formulary online.

    Since Phenidone doesn't always dissolve easily in water, I use 90% isopropyl (rubbing) alcohol from the market or pharmacy to make up a 1% stock solution. 1g. phenidone in 100 ml of alcohol. This stock keeps very well for many months.

    Formula for PCC (Phenidone, Vitamin C, Sodium Carbonate)

    1 liter water at 70F
    1/2 kitchen teaspoon (4 g.) of Vitamin C (ascorbic acid) powder or crystals
    1 tsp. (5 g) Sodium Carbonate (Arm & Hammer Washing Soda from the supermarket or pH Plus from the swimming pool supply store.)
    2.5 ml Phenidone stock solution (the baby medicine droppers work well for this)

    My developing time for Acros (rated at ISO 50) is 7'30" at 70F. Your times may vary a bit.

    It gives very, very fine grain and a wonderfully long tonal scale with creamy highlights. I mix it fresh and use it as a one-shot for each developing session. I can run as many as four rolls through one liter. If you have a tank that will hold only 2 120 rolls, you can do two runs, increasing the developing time in the second run by about 15-20%.

    Larry

  5. #15
    Wmcgowin's Avatar
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    I'm pretty standard, but I use D-76, take the suggested developing times on the inside of the Acros box and increase them by 15-20%. I was getting low contrast negatives until I increased the development times.

  6. #16
    Bruce Osgood's Avatar
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    Quote Originally Posted by Peter Schrager
    With rodinal 1:100 for 18 minutes. I do about 20% less in rotary drum, Great negatives.
    Peter
    Peter, is that at box speed or something else? Does this apply to 35mm as well?

  7. #17

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    [QUOTES=Maine-iac]
    ... a simple, 3-ingredient formula for ACROS that gives
    me beautiful results and is simple to mix and dirt cheap.

    Formula for PCC (Phenidone, Vitamin C, Sodium Carbonate)
    ... 2.5 ml Phenidone stock solution

    It gives very, very fine grain and a wonderfully long tonal
    scale with creamy highlights. I mix it fresh and use it as a
    one-shot for each developing session. I can run as many
    as four rolls through one liter. Larry[/QUOTE]

    That little phenidone for four rolls? By my math, for the
    liter, that is a .0025 % solution of phenidone. The amount
    being .025 grams. That works out to .00625 grams/roll.
    Are you sure so little will do?

    On another tack. That less than 0.01 gram of phenidone
    in hundreds of milliliters of water will in a few minutes fully
    engulf and reduce all the necessary silver halid grains
    needed to make an image.

    And to think I've been saying I use fixer very dilute. Dan

  8. #18

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    Perceptol 1+2 for 16 Min @ 68 degrees.

  9. #19

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    Just did a roll in TMAx Dev 1:4 for 5.5 minutes at 20C. Turned out quite well.

  10. #20
    André E.C.'s Avatar
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    I`ve tried ACROS 120 in DDX 1:4 for 9 minutes at 20c, I`m pleased with what I got.

    Cheers

    André

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